結果
| 問題 | No.5015 Escape from Labyrinth |
| ユーザー |
 motoshira
|
| 提出日時 | 2023-04-16 14:27:00 |
| 言語 | Common Lisp (sbcl 2.3.8) |
| 結果 |
AC
|
| 実行時間 | 2,668 ms / 3,000 ms |
| コード長 | 55,406 bytes |
| コンパイル時間 | 2,219 ms |
| コンパイル使用メモリ | 119,684 KB |
| 実行使用メモリ | 344,992 KB |
| スコア | 46,240 |
| 最終ジャッジ日時 | 2023-04-16 14:31:31 |
| 合計ジャッジ時間 | 269,528 ms |
|
ジャッジサーバーID （参考情報） |
judge13 / judge16 |
| 純コード判定しない問題か言語 |
（要ログイン）
テストケース
テストケース表示| 入力 | 結果 | 実行時間 実行使用メモリ |
|---|---|---|
| testcase_00 | AC | 2,562 ms
254,968 KB |
| testcase_01 | AC | 2,558 ms
271,292 KB |
| testcase_02 | AC | 2,590 ms
273,252 KB |
| testcase_03 | AC | 2,566 ms
289,792 KB |
| testcase_04 | AC | 2,562 ms
297,944 KB |
| testcase_05 | AC | 2,564 ms
344,992 KB |
| testcase_06 | AC | 2,558 ms
293,700 KB |
| testcase_07 | AC | 2,559 ms
217,968 KB |
| testcase_08 | AC | 2,563 ms
289,812 KB |
| testcase_09 | AC | 2,562 ms
269,112 KB |
| testcase_10 | AC | 2,562 ms
318,424 KB |
| testcase_11 | AC | 2,567 ms
304,152 KB |
| testcase_12 | AC | 2,561 ms
300,076 KB |
| testcase_13 | AC | 2,558 ms
269,328 KB |
| testcase_14 | AC | 2,558 ms
228,300 KB |
| testcase_15 | AC | 2,563 ms
314,348 KB |
| testcase_16 | AC | 2,557 ms
281,404 KB |
| testcase_17 | AC | 2,562 ms
277,404 KB |
| testcase_18 | AC | 2,563 ms
269,276 KB |
| testcase_19 | AC | 2,561 ms
281,476 KB |
| testcase_20 | AC | 2,624 ms
234,412 KB |
| testcase_21 | AC | 2,564 ms
299,996 KB |
| testcase_22 | AC | 2,559 ms
232,424 KB |
| testcase_23 | AC | 2,573 ms
293,848 KB |
| testcase_24 | AC | 2,556 ms
248,668 KB |
| testcase_25 | AC | 2,593 ms
248,756 KB |
| testcase_26 | AC | 2,561 ms
271,204 KB |
| testcase_27 | AC | 2,593 ms
308,236 KB |
| testcase_28 | AC | 2,562 ms
224,044 KB |
| testcase_29 | AC | 2,566 ms
258,968 KB |
| testcase_30 | AC | 2,607 ms
291,800 KB |
| testcase_31 | AC | 2,564 ms
310,264 KB |
| testcase_32 | AC | 2,560 ms
242,676 KB |
| testcase_33 | AC | 2,557 ms
326,524 KB |
| testcase_34 | AC | 2,558 ms
291,740 KB |
| testcase_35 | AC | 2,560 ms
283,492 KB |
| testcase_36 | AC | 2,561 ms
289,788 KB |
| testcase_37 | AC | 2,565 ms
324,440 KB |
| testcase_38 | AC | 2,564 ms
306,196 KB |
| testcase_39 | AC | 2,556 ms
263,032 KB |
| testcase_40 | AC | 2,562 ms
306,072 KB |
| testcase_41 | AC | 2,578 ms
269,252 KB |
| testcase_42 | AC | 2,560 ms
314,260 KB |
| testcase_43 | AC | 2,567 ms
310,176 KB |
| testcase_44 | AC | 2,561 ms
308,220 KB |
| testcase_45 | AC | 2,562 ms
285,548 KB |
| testcase_46 | AC | 2,631 ms
297,952 KB |
| testcase_47 | AC | 2,624 ms
271,328 KB |
| testcase_48 | AC | 2,556 ms
324,508 KB |
| testcase_49 | AC | 2,647 ms
277,436 KB |
| testcase_50 | AC | 2,581 ms
291,756 KB |
| testcase_51 | AC | 2,563 ms
310,280 KB |
| testcase_52 | AC | 2,558 ms
213,856 KB |
| testcase_53 | AC | 2,627 ms
299,956 KB |
| testcase_54 | AC | 2,555 ms
215,960 KB |
| testcase_55 | AC | 2,560 ms
283,436 KB |
| testcase_56 | AC | 2,556 ms
258,892 KB |
| testcase_57 | AC | 2,559 ms
243,992 KB |
| testcase_58 | AC | 2,562 ms
293,824 KB |
| testcase_59 | AC | 2,558 ms
275,116 KB |
| testcase_60 | AC | 2,562 ms
302,112 KB |
| testcase_61 | AC | 2,668 ms
226,296 KB |
| testcase_62 | AC | 2,558 ms
279,544 KB |
| testcase_63 | AC | 2,559 ms
289,684 KB |
| testcase_64 | AC | 2,553 ms
275,384 KB |
| testcase_65 | AC | 2,566 ms
293,824 KB |
| testcase_66 | AC | 2,561 ms
275,280 KB |
| testcase_67 | AC | 2,562 ms
285,608 KB |
| testcase_68 | AC | 2,564 ms
287,596 KB |
| testcase_69 | AC | 2,560 ms
277,484 KB |
| testcase_70 | AC | 2,560 ms
287,596 KB |
| testcase_71 | AC | 2,563 ms
316,348 KB |
| testcase_72 | AC | 2,562 ms
306,048 KB |
| testcase_73 | AC | 2,558 ms
260,952 KB |
| testcase_74 | AC | 2,555 ms
261,160 KB |
| testcase_75 | AC | 2,564 ms
281,396 KB |
| testcase_76 | AC | 2,559 ms
301,960 KB |
| testcase_77 | AC | 2,559 ms
271,248 KB |
| testcase_78 | AC | 2,560 ms
271,364 KB |
| testcase_79 | AC | 2,564 ms
277,484 KB |
| testcase_80 | AC | 2,560 ms
318,184 KB |
| testcase_81 | AC | 2,558 ms
267,252 KB |
| testcase_82 | AC | 2,558 ms
279,380 KB |
| testcase_83 | AC | 2,569 ms
293,748 KB |
| testcase_84 | AC | 2,559 ms
273,400 KB |
| testcase_85 | AC | 2,568 ms
307,984 KB |
| testcase_86 | AC | 2,574 ms
293,736 KB |
| testcase_87 | AC | 2,562 ms
252,912 KB |
| testcase_88 | AC | 2,570 ms
279,316 KB |
| testcase_89 | AC | 2,560 ms
273,396 KB |
| testcase_90 | AC | 2,556 ms
269,204 KB |
| testcase_91 | AC | 2,575 ms
338,200 KB |
| testcase_92 | AC | 2,564 ms
296,008 KB |
| testcase_93 | AC | 2,560 ms
281,388 KB |
| testcase_94 | AC | 2,564 ms
291,836 KB |
| testcase_95 | AC | 2,561 ms
310,252 KB |
| testcase_96 | AC | 2,563 ms
310,264 KB |
| testcase_97 | AC | 2,561 ms
267,236 KB |
| testcase_98 | AC | 2,565 ms
291,792 KB |
| testcase_99 | AC | 2,557 ms
322,448 KB |
コンパイルメッセージ
; compiling file "/home/judge/data/code/Main.lisp" (written 16 APR 2023 02:27:02 PM): ; processing (IN-PACKAGE #:CL-USER) ; processing (DECLAIM (OPTIMIZE # ...)) ; processing (DECLAIM (MUFFLE-CONDITIONS COMPILER-NOTE)) ; processing (DISABLE-DEBUGGER) ; processing (SET-DISPATCH-MACRO-CHARACTER #\# ...) ; processing (SET-DISPATCH-MACRO-CHARACTER #\# ...) ; processing (DEFPACKAGE CP-LIBRARY/AVL-TREE ...) ; processing (IN-PACKAGE AVL) ; processing (DECLAIM (INLINE %%MAKE-NODE)) ; processing (DEFSTRUCT (NODE # ...) ...) ; processing (DEFMACRO DEFINE-ACCESSOR-FOR-NULLABLE-NODE ...) ; processing (DEFINE-ACCESSOR-FOR-NULLABLE-NODE %VALUE ...) ; processing (DEFINE-ACCESSOR-FOR-NULLABLE-NODE %KEY ...) ; processing (DEFINE-ACCESSOR-FOR-NULLABLE-NODE %CNT ...) ; processing (DEFINE-ACCESSOR-FOR-NULLABLE-NODE %HEIGHT ...) ; processing (DEFINE-ACCESSOR-FOR-NULLABLE-NODE %L ...) ; processing (DEFINE-ACCESSOR-FOR-NULLABLE-NODE %R ...) ; processing (DEFUN DUMP-TO-LIST ...) ; processing (DEFMETHOD PRINT-OBJECT ...) ; processing (DEFUN DUMP-TO-TREE ...) ; processing (DECLAIM (INLINE %MAKE-NODE)) ; processing (DEFUN %MAKE-NODE ...) ; processing (DEFUN MAKE-AVL-TREE ...) ; processing (DECLAIM (INLINE %UPDATE-NODE)) ; processing (DEFUN %UPDATE-NODE ...) ; processing (DECLAIM (INLINE %ROTATE-LEFT)) ; processing (DEFUN %ROTATE-LEFT ...) ; processing (DECLAIM (INLINE %ROTATE-RIGHT)) ; processing (DEFUN %ROTATE-RIGHT ...) ; processing (DECLAIM (INLINE %ROTATE-LR)) ; processing (DEFUN %ROTATE-LR ...) ; processing (DECLAIM (INLINE %ROTATE-RL)) ; processing (DEFUN %ROTATE-RL ...) ; processing (DEFCONSTANT +TOO-LEFT+ ...) ; processing (DEFCONSTANT +LEFT+ ...) ; processing (DEFCONSTANT +EVEN+ ...) ; processing (DEFCONSTANT +RIGHT+ ...) ; processing (DEFCONSTANT +TOO-RIGHT+ ...) ; processing (DECLAIM (INLINE %BIAS)) ; processing (DEFUN %BIAS ...) ; processing (DECLAIM (INLINE %LEFT-RIGHT-CASE-P)) ; processing (DEFUN %LEFT-RIGHT-CASE-P ...) ; processing (DECLAIM (INLINE %RIGHT-LEFT-CASE-P)) ; proces
ソースコード
(in-package #:cl-user)
;;;
;;; Init
;;;
(eval-when (:compile-toplevel :load-toplevel :execute)
;; #+swank (declaim (optimize (speed 3) (safety 2)))
#+swank (declaim (optimize (speed 0) (safety 3) (debug 3)))
#-swank (declaim (optimize (speed 3) (safety 0) (debug 0)))
#-swank (declaim (sb-ext:muffle-conditions sb-ext:compiler-note))
#-swank (sb-ext:disable-debugger))
;;;
;;; Reader Macros
;;;
(eval-when (:compile-toplevel :load-toplevel :execute)
(set-dispatch-macro-character
#\# #\f
#'(lambda (stream c2 n)
(declare (ignore c2 n))
(let ((form (read stream t nil t)))
`(lambda (&optional %) (declare (ignorable %)) ,form))))
(set-dispatch-macro-character
#\# #\>
#'(lambda (stream c2 n)
(declare (ignore c2 n))
(let ((form (read stream t nil t)))
(declare (ignorable form))
#-swank nil
#+swank (if (atom form)
`(format *error-output* "~a => ~a~&" ',form ,form)
`(format *error-output* "~a => ~a~&" ',form `(,,@form)))))))
;;;
;;; Libraries
;;;
;;;
;;; BOF
;;;
(defpackage cp-library/avl-tree
(:use #:cl)
(:nicknames #:avl)
(:shadow #:remove
#:count)
(:export #:make-avl-tree
#:insert
#:remove
#:insert!
#:remove!
#:count
#:dump-to-list
#:dump-to-tree
#:keys
#:vals
#:predecessor
#:successor
#:nth-element
#:compare-default
#:compare-keyword
#:ref
#:update
#:update!
#:make-avl-tree-from-list
#:rand-nth))
(in-package avl)
(declaim (inline %%make-node))
(defstruct (node (:constructor %%make-node)
(:conc-name %%))
(key nil :type t)
(value nil :type t)
(cnt nil :type fixnum)
(height nil :type fixnum)
(l nil :type (or null node))
(r nil :type (or null node)))
(defmacro define-accessor-for-nullable-node (name accessor default)
`(progn
(declaim (inline ,name))
(defun ,name (node)
(if node
(,accessor node)
,default))))
(define-accessor-for-nullable-node %value %%value nil)
(define-accessor-for-nullable-node %key %%key nil)
(define-accessor-for-nullable-node %cnt %%cnt 0)
(define-accessor-for-nullable-node %height %%height 0)
(define-accessor-for-nullable-node %l %%l nil)
(define-accessor-for-nullable-node %r %%r nil)
(defun dump-to-list (node)
(let ((res nil))
(labels ((rec (node)
(when node
(rec (%%l node))
(push (cons (%%key node)
(%%value node))
res)
(rec (%%r node)))))
(rec node)
(reverse res))))
(defmethod print-object ((node node) s)
(print-unreadable-object (node s :type t)
(dolist (kv (dump-to-list node))
(fresh-line s)
(princ kv s))
(terpri s)))
(defun dump-to-tree (node)
(labels ((rec (node)
(when node
(cl:remove nil
(list
(rec (%%l node))
(when node
(cons (%%key node)
(%%value node)))
(rec (%%r node)))))))
(rec node)))
(declaim (inline %make-node))
(defun %make-node (&key key value l r)
(declare ((or null node) l r))
(let ((height (1+ (max (%height l)
(%height r))))
(cnt (1+ (the fixnum
(+ (%cnt l)
(%cnt r))))))
(declare (fixnum height cnt))
(%%make-node :key key
:value value
:height height
:cnt cnt
:l l
:r r)))
(defun make-avl-tree ()
"Create an empty avl-tree."
nil)
;; helper functions
(declaim (inline %update-node))
(defun %update-node (node &key (key nil k-p) (value nil v-p) (l nil l-p) (r nil r-p))
(%make-node :key (if k-p
key
(%key node))
:value (if v-p
value
(%value node))
:l (if l-p
l
(%l node))
:r (if r-p
r
(%r node))))
(declaim (inline %rotate-left))
(defun %rotate-left (node)
(declare (node node)
#+sbcl (sb-ext:muffle-conditions sb-ext:compiler-note))
(let* ((r (%%r node))
(rl (%l r)))
(%update-node r :l (%update-node node :r rl))))
(declaim (inline %rotate-right))
(defun %rotate-right (node)
(declare (node node)
#+sbcl (sb-ext:muffle-conditions sb-ext:compiler-note))
(let* ((l (%%l node))
(lr (%r l)))
(%update-node l :r (%update-node node :l lr))))
(declaim (inline %rotate-lr))
(defun %rotate-lr (node)
(%rotate-right
(%update-node node
:l (%rotate-left (%%l node)))))
(declaim (inline %rotate-rl))
(defun %rotate-rl (node)
(%rotate-left
(%update-node node
:r (%rotate-right (%%r node)))))
(defconstant +too-left+ -2)
(defconstant +left+ -1)
(defconstant +even+ 0)
(defconstant +right+ 1)
(defconstant +too-right+ 2)
(declaim (inline %bias))
(defun %bias (node)
(if (null node)
0
(- (%height (%%r node))
(%height (%%l node)))))
(declaim (inline %left-right-case-p))
(defun %left-right-case-p (node)
(= (%bias (%%l node)) +right+))
(declaim (inline %right-left-case-p))
(defun %right-left-case-p (node)
(= (%bias (%%r node)) +left+))
(declaim (inline %balance))
(defun %balance (node)
(let ((b (%bias node)))
(cond
((= b +even+) (values node t))
((or (= b +left+)
(= b +right+))
(values node nil))
((<= b +too-left+)
(values (if (%left-right-case-p node)
(%rotate-lr node)
(%rotate-right node))
t))
(t
(values (if (%right-left-case-p node)
(%rotate-rl node)
(%rotate-left node))
t)))))
(defun compare-default (key node-key)
(declare (fixnum node-key key))
(cond
((= key node-key) :eq)
((< key node-key) :less)
(t :greater)))
(defun compare-keyword (k1 k2)
(declare (keyword k1 k2))
(let ((k1 (sb-impl::eq-hash k1))
(k2 (sb-impl::eq-hash k2)))
(cond
((< k1 k2) :less)
((= k1 k2) :eq)
(t :greater))))
(defun insert (node key value &optional (compare #'compare-default))
;; (values balanced-node need-to-balance-parents)
(declare (optimize (speed 3) (safety 0))
(function compare))
(labels ((%rec (node)
(unless node
(return-from %rec
(values (%make-node :key key
:value value)
nil)))
(ecase (funcall compare key (%%key node))
(:eq
;; 書き換えだけなのでbalanceしなくていい
(values (%update-node node :value value)
t))
(:less
(multiple-value-bind (l balanced) (%rec (%%l node))
(let ((new-node (%update-node node :l l)))
(if balanced
(values new-node t)
(%balance new-node)))))
(:greater
(multiple-value-bind (r balanced) (%rec (%%r node))
(let ((new-node (%update-node node :r r)))
(if balanced
(values new-node t)
(%balance new-node))))))))
(%rec node)))
(defun %remove-rightest (node)
;; (values new-node removed-node balanced)
(declare (optimize (speed 3) (safety 0)))
(let ((r (%%r node)))
(if (null r)
;; node = rightest
(let ((l (%%l node))
(removed (%update-node node :l nil)))
(values l removed nil))
(multiple-value-bind (new-r removed balanced) (%remove-rightest r)
(let ((new (%update-node node :r new-r)))
(if balanced
(values new removed t)
(multiple-value-bind (new balanced) (%balance new)
(values new removed balanced))))))))
(defun remove (node key &optional (compare #'compare-default))
(declare (optimize (speed 3) (safety 0))
(function compare))
(labels ((%rec (node)
(unless node
(return-from %rec (values nil nil)))
(ecase (funcall compare key (%%key node))
(:eq
(let ((l (%%l node))
(r (%%r node)))
(unless (and l r)
(return-from %rec
(if #1=(or l r)
(values #1# nil)
(values nil t))))
(multiple-value-bind (new-l removed balanced) (%remove-rightest l)
(if (null removed)
;; 変更なし
(values node t)
(let ((new-node (%make-node :key (%%key removed)
:value (%%value removed)
:l new-l
:r (%%r node))))
(if balanced
(values new-node t)
(%balance new-node)))))))
(:less
(multiple-value-bind (l balanced) (%rec (%%l node))
(let ((new-node (%update-node node :l l)))
(if balanced
(values new-node t)
(%balance new-node)))))
(:greater
(multiple-value-bind (r balanced) (%rec (%%r node))
(let ((new-node (%update-node node :r r)))
(if balanced
(values new-node t)
(%balance new-node))))))))
(%rec node)))
(define-modify-macro insert! (key value &optional (compare '(function compare-default))) insert)
(define-modify-macro remove! (key &optional (compare '(function compare-default))) remove)
(defun keys (node)
(mapcar #'car (dump-to-list node)))
(defun vals (node)
(mapcar #'cdr (dump-to-list node)))
(defun count (node)
(%cnt node))
(defun predecessor (node key &optional (compare #'compare-default))
(declare (optimize (speed 3) (safety 0))
(function compare))
(labels ((%rec (node)
(when node
(ecase (funcall compare key (%%key node))
(:greater
(or (%rec (%%r node))
node))
((:eq :less)
(%rec (%%l node)))))))
(let ((res (%rec node)))
(if res
(values (%%key res) (%%value res) t)
(values nil nil nil)))))
(defun successor (node key &optional (compare #'compare-default))
(declare (optimize (speed 3) (safety 0))
(function compare))
(labels ((%rec (node)
(when node
(ecase (funcall compare key (%%key node))
(:less
(or (%rec (%%l node))
node))
((:eq :greater)
(%rec (%%r node)))))))
(let ((res (%rec node)))
(if res
(values (%%key res) (%%value res) t)
(values nil nil nil)))))
(defun nth-element (node n)
(declare (optimize (speed 3) (safety 0))
(fixnum n))
(labels ((%rec (node k)
(declare (fixnum k))
(let ((l-cnt (%cnt (%%l node))))
(declare (fixnum l-cnt))
(cond
((< k l-cnt)
(%rec (%%l node)
k))
((= k l-cnt)
node)
(t
(%rec (%%r node)
(- k l-cnt 1)))))))
(if (<= 0 n (the fixnum (1- (the fixnum (%cnt node)))))
(let ((res (%rec node n)))
(declare (node node))
(values (%%key res) (%%value res) t))
(values nil nil nil))))
(defun rand-nth (node)
(when node
(nth-element node (random (count node)))))
(defun ref (node key &optional (compare #'compare-default))
(declare (optimize (speed 3) (safety 0))
(function compare))
(labels ((%rec (node)
(when node
(ecase (funcall compare key (%%key node))
(:eq node)
(:less (%rec (%%l node)))
(:greater (%rec (%%r node)))))))
(let ((res (%rec node)))
(if res
(values (%%key node) (%%value node) t)
(values nil nil nil)))))
(defun update (node key fn &optional (compare #'compare-default))
(let ((current (ref node key compare)))
(insert node key (funcall fn current) compare)))
(defun make-avl-tree-from-list (key-fn value-fn list &optional (compare #'compare-default))
(let ((res nil))
(dolist (x list res)
(avl:insert! res
(funcall key-fn x)
(funcall value-fn x)
compare))))
(define-modify-macro update! (key fn &optional (compare '(function compare-default))) update)
;;;
;;; EOF
;;;
;;;
;;; BOF
;;;
(defpackage randomized-heap
(:use #:cl)
(:nicknames #:rh)
(:shadow #:count)
(:export #:make-randomized-heap
#:empty-p
#:push!
#:pop!
#:peak
#:count
#:do-all-kvs
#:prune!))
(in-package #:randomized-heap)
(eval-when (:compile-toplevel :load-toplevel :execute)
(defvar *OPT*
#+swank '(optimize (speed 3) (safety 2))
#-swank '(optimize (speed 3) (safety 0) (debug 0))))
(declaim (inline %make-node make-randomized-heap))
(defstruct (node (:constructor %make-node)
(:conc-name %n-))
(key nil :type fixnum)
(value nil :type t)
(children (make-array 2 :element-type '(or null node)
:initial-element nil)
:type (simple-array (or null node) (2))))
(defstruct (randomized-heap (:constructor make-randomized-heap (&optional (compare #'sb-impl::two-arg-<) (key-fn #'identity))))
(root nil :type (or null node))
(count 0 :type (integer 0 #.most-positive-fixnum))
(comparator compare :type (function (fixnum fixnum) boolean))
(key-fn key-fn :type (function (t) fixnum)))
(defun count (heap)
(randomized-heap-count heap))
(declaim (inline %direction))
(defun %direction ()
(declare #.*OPT*)
(random 2))
(defun meld (l r comparator)
(declare #.*OPT*
((or null node) l r)
((function (fixnum fixnum) boolean) comparator))
(cond
((or (null l)
(null r))
(or l r))
((funcall comparator
(%n-key l)
(%n-key r))
;; l is root
(let ((dir (%direction)))
(setf (aref (%n-children l) dir)
(meld (aref (%n-children l) dir)
r
comparator))
l))
(t
;; r is root
(let ((dir (%direction)))
(setf (aref (%n-children r) dir)
(meld l
(aref (%n-children r) dir)
comparator))
r))))
(declaim (inline peak))
(defun peak (heap)
(declare #.*OPT*)
(let ((root (randomized-heap-root heap)))
(values (%n-value root)
(%n-key root))))
(defun empty-p (heap)
(null (randomized-heap-root heap)))
(declaim (inline pop! push!))
(defun pop! (heap)
(declare #.*OPT*)
(when (empty-p heap)
(error "heap is empty"))
(decf (randomized-heap-count heap))
(multiple-value-bind (value key)
(peak heap)
(let* ((children (%n-children (randomized-heap-root heap)))
(l (aref children 0))
(r (aref children 1)))
(setf (randomized-heap-root heap)
(meld l
r
(randomized-heap-comparator heap)))
(values value key))))
(defun push! (heap value)
(declare #.*OPT*)
(let ((key (funcall (randomized-heap-key-fn heap)
value)))
(incf (randomized-heap-count heap))
(setf (randomized-heap-root heap)
(meld (randomized-heap-root heap)
(%make-node :key key
:value value)
(randomized-heap-comparator heap))))
heap)
(defmacro do-all-kvs ((key value heap) &body body &environment env)
(let ((temp (gensym)))
(multiple-value-bind (args argvs res setter accessor)
(get-setf-expansion heap env)
`(let ((,temp (make-randomized-heap (randomized-heap-comparator ,accessor)
(randomized-heap-key-fn ,accessor))))
(loop :until (empty-p ,accessor)
:do (multiple-value-bind (,value ,key)
(pop! ,accessor)
(progn ,@body)
(push! ,temp ,value)))
(let* (,@(mapcar #'list args argvs)
(,(car res) ,temp))
,setter
nil)))))
(defun prune! (heap cnt)
(let ((new-root nil)
(comparator (randomized-heap-comparator heap)))
(dotimes (_ cnt)
(multiple-value-bind (v k) (pop! heap)
(setf new-root
(meld new-root
(%make-node :key k :value v)
comparator))))
(setf (randomized-heap-root heap)
new-root)))
;;;
;;; EOF
;;;
;;;
;;; Macros
;;;
(in-package #:cl-user)
(defmacro do-iota ((var count &optional (start 0) (step 1)) &body body)
(check-type step integer)
(let* ((last (gensym))
(terminate (if (plusp step) `(>= ,var ,last) `(<= ,var ,last))))
`(let ((,last (+ ,start (the fixnum (* ,step ,count)))))
(declare (fixnum ,last))
(do
((,var ,start (+ ,var ,step)))
(,terminate
(progn ,@body))))))
(defmacro awhen (test &body forms)
`(let ((it ,test))
(when it
,@forms)))
(defmacro while (test &body body)
`(loop while ,test do (progn ,@body)))
(defmacro eval-always (&body body)
`(eval-when (:compile-toplevel :load-toplevel :execute)
,@body))
;;;
;;; I/O
;;;
(in-package #:cl-user)
(declaim (inline println))
(defun println (obj &optional (stream *standard-output*))
#+sbcl (declare (sb-kernel:ansi-stream stream))
(let ((*read-default-float-format* 'double-float))
(prog1 obj
(princ obj stream)
(terpri stream))))
(declaim (inline %read-byte))
(defun %read-byte (&optional (stream *standard-input*))
(declare (inline read-byte)
#+(and sbcl (not swank)) (sb-kernel:ansi-stream stream))
(the fixnum #+swank (char-code (read-char stream nil #\Nul))
#-swank (read-byte stream nil #.(char-code #\Nul))))
(declaim (inline read-fixnum))
(defun read-fixnum (&optional (in *standard-input*) (byte-reader #'%read-byte))
;; Ref: https://competitive12.blogspot.com/2020/03/common-lisp.html
;; partially modified
(declare ((function (stream) (unsigned-byte 8)) byte-reader)
(optimize (speed 3) (safety 0) (debug 0)))
(let ((minus nil)
(res 0))
(declare (boolean minus)
(fixnum res))
(labels ((%byte->num (b)
(the fixnum (- (the fixnum b) #.(char-code #\0))))
(%digit-p (byte)
(<= #.(char-code #\0) (the fixnum byte) #.(char-code #\9)))
(%first-proc! ()
(loop for byte of-type fixnum = (funcall byte-reader in)
do (cond
((%digit-p byte)
(setf (the fixnum res) (%byte->num byte))
(return))
((= byte #.(char-code #\Nul))
(error "EOF"))
((= byte #.(char-code #\-))
(setf minus t)))))
(%rest-proc! ()
(loop for byte of-type fixnum = (funcall byte-reader in)
do (cond
((%digit-p byte)
(setf (the fixnum res) (the fixnum (+ (the fixnum (* res 10)) (%byte->num byte)))))
(t (return))))))
(declare (inline %byte->num %digit-p %first-proc! %rest-proc!))
(%first-proc!)
(%rest-proc!)
(the fixnum (if minus (- res) res)))))
(declaim (inline read-base-char))
(defun read-base-char (&optional (stream *standard-input*))
(code-char (%read-byte stream)))
(defun read-line-fast (&optional (stream *standard-input*))
#+(and (not swank) sbcl) (declare (sb-kernel:ansi-stream stream))
(loop with buffer of-type base-string = (make-array 0 :element-type 'base-char :fill-pointer 0)
for c of-type base-char = (read-base-char stream)
until (or (eql c #\Newline)
(eql c #\Nul))
do (vector-push-extend c buffer)
finally (return buffer)))
(defun split (string &optional (separator #\space))
(declare (base-char separator))
(let ((pos (position separator string)))
(if pos
(cons (subseq string 0 pos)
(split (subseq string (1+ pos))
separator))
(list string))))
(declaim (inline parse-fixnum))
(defun parse-fixnum (string)
(with-input-from-string (in string)
(read-fixnum in #f(the (unsigned-byte 8)
(char-code (read-char % nil #\Nul nil))))))
(declaim (inline read-times))
(defun read-times (count &key (result-type 'list) (reader #'read-fixnum))
(coerce (loop repeat count collect (funcall reader)) result-type))
(defun unwrap (sequence)
;; e.g. (unwrap (list 1 2 3 4 5)) => "1 2 3 4 5"
(let ((*standard-output* (make-string-output-stream :element-type 'base-char)))
(let ((init nil))
(declare (boolean init))
(map nil
(lambda (x)
(when init
(princ #\space))
(setq init t)
(princ x))
sequence))
(coerce (get-output-stream-string *standard-output*) 'simple-base-string)))
;;;
;;; Body
;;;
(in-package #:cl-user)
(defmacro %expander-body (form cases)
`(ecase ,form
,@(loop for (from . to) in cases
collect `(,from ,to))))
(defmacro define-ecase-expander (name assoc-list)
`(defmacro ,name (form)
`(%expander-body ,form ,',assoc-list)))
(eval-always
;; TODO wait
(defconstant +grid-size+ 60)
(defconstant +player-vital+ 1500)
(sb-int:defconstant-eqx +char-int-assoc+
'((#\. . 0)
(#\# . 1)
(#\S . 2)
(#\G . 3)
(#\K . 4)
(#\J . 5)
(#\F . 6)
(#\E . 7))
#'equalp)
(sb-int:defconstant-eqx +move-dy-dx-assoc+
'((:down . (1 . 0))
(:up . (-1 . 0))
(:left . (0 . -1))
(:right . (0 . 1))
#+nil (:wait . (0 . 0)))
#'equalp)
(sb-int:defconstant-eqx +dir-char-assoc+
'((:down . #\D)
(:up . #\U)
(:left . #\L)
(:right . #\R))
#'equal)
(sb-int:defconstant-eqx +moves+ (mapcar #'car +move-dy-dx-assoc+)
#'equal)
(sb-int:defconstant-eqx +dy-dx+ (mapcar #'cdr +move-dy-dx-assoc+)
#'equalp)
(defun swap-cons (xs)
(cons (cdr xs) (car xs))))
(define-ecase-expander char->int-ecase #.+char-int-assoc+)
(define-ecase-expander int->char-ecase #.(mapcar #'swap-cons +char-int-assoc+))
(define-ecase-expander dir->char-ecase #.+dir-char-assoc+)
(defun char->int (c)
(char->int-ecase c))
(defun int->char (int)
(int->char-ecase int))
(defun dir->char (dir)
(dir->char-ecase dir))
(defun move->dy-dx (move)
"Returns (cons dy dx)"
(cdr (assoc move +move-dy-dx-assoc+)))
;; Coord
(eval-always
(defconstant +each-coord-word-size+ 8))
(eval-always
(deftype coord () '(unsigned-byte #.(* +each-coord-word-size+ 2))))
(declaim (inline y x))
(defun y (c)
(ldb (byte #.+each-coord-word-size+ 0)
c))
(defun x (c)
(ldb (byte #.+each-coord-word-size+ #.+each-coord-word-size+)
c))
#+nil
(defun valid-coord-p (c)
(and (<= 0 (y c) (1- +grid-size+))
(<= 0 (x c) (1- +grid-size+))))
(declaim (inline make-coord))
(defun make-coord (&key y x)
(when (and (<= 0 y (1- +grid-size+))
(<= 0 x (1- +grid-size+)))
(dpb x
(byte +each-coord-word-size+ +each-coord-word-size+)
y)))
#+nil
(let ((c (make-coord :y 3 :x 1)))
(values c (y c) (x c)))
(declaim (inline next-coord))
(defun next-coord (c dy dx)
(make-coord :y (the fixnum (+ (y c) dy))
:x (the fixnum (+ (x c) dx))))
(deftype costs () '(simple-array single-float (#.+grid-size+ #.+grid-size+)))
(deftype objs () '(simple-array (unsigned-byte 4) (#.+grid-size+ #.+grid-size+)))
(defstruct (game-info (:conc-name %))
"ゲーム中に変化しない情報をまとめる"
(estimated-cost-to-goal nil :type costs)
(estimated-cost-to-key nil :type costs)
(key-pos nil :type coord)
(objs nil :type objs :read-only t)
;; TODO use vector
(finder-cycle-by-coord (make-hash-table) :type hash-table :read-only t)
(finder-penalty nil :type fixnum))
(defun estimated-cost-to-goal (game-info c)
(aref (%estimated-cost-to-goal game-info) (y c) (x c)))
(defun estimated-cost-to-key (game-info c)
(aref (%estimated-cost-to-key game-info) (y c) (x c)))
(defun obj-at (game-info c)
(int->char (aref (%objs game-info) (y c) (x c))))
(defun finder-active-p (game-info pos turn)
;; MEMO turnは1からスタートする
(let ((finder-cycle (gethash pos (%finder-cycle-by-coord game-info))))
(zerop (rem turn finder-cycle))))
(defstruct (state (:conc-name %))
(pos nil :type coord)
(visited nil :type integer)
(has-key (error "Need to specify value") :type boolean)
;; TODO bloom filterで保持できるとうれしそう
;; avl-tree of coord (shared with other boards)
(destroyed-finders nil :type t :read-only t)
;; avl-tree of coord (shared with other boards)
(blocks nil :type t :read-only t)
(fire-amount 0 :type (integer 0 #.most-positive-fixnum))
(jewel-amount 0 :type (integer 0 #.most-positive-fixnum))
(elapsed-turn 0 :type (integer 0 #.most-positive-fixnum))
(elapsed-vital 0 :type (integer 0 #.most-positive-fixnum)))
(defun visitedp (state coord)
(logbitp (+ (* (y coord) +grid-size+) (x coord))
(%visited state)))
(defun %get-next-visited (state coord)
(logior (%visited state)
(ash 1 (+ (* (y coord) +grid-size+) (x coord)))))
(defun reachablep (state game-info coord)
;; coordのマスへ移動できる
;; TODO moveを引数に取りたい
(let ((c (obj-at game-info coord)))
(and (not (avl:ref (%blocks state) coord))
(or (find c ".SGKJF")
(and (char= c #\E)
(avl:ref (%destroyed-finders state) coord))))))
(defun block-placeable-p (state game-info coord)
;; coordのマスにブロックを配置できる
;; finder破壊後のマスにも置ける？
(let ((c (obj-at game-info coord)))
(and (char= c #\.)
(null (avl:ref (%blocks state) coord)))))
(defun block-removable-p (state game-info coord)
;; coordのマスのブロックを削除
(declare (ignore game-info))
(avl:ref (%blocks state) coord))
(defun %find-obj (get-obj-at obj)
(loop for y below +grid-size+
for c = (loop for x below +grid-size+
for c = (make-coord :y y :x x)
for i = (funcall get-obj-at c)
when (char= i obj)
return c)
when c
return it))
(defun %make-est-cost-from-obj (objs start-obj finder-cycle-by-coord)
(flet ((obj-at (c)
(int->char (aref objs (y c) (x c)))))
(let ((sc (%find-obj #'obj-at start-obj))
(costs (make-array (list +grid-size+ +grid-size+) :element-type 'single-float
:initial-element most-positive-single-float))
(heap (rh:make-randomized-heap #'< #'first)))
(assert sc)
(rh:push! heap (list 0.0 sc))
(while (not (rh:empty-p heap))
(destructuring-bind (cost c) (rh:pop! heap)
(when (<= cost (aref costs (y c) (x c)))
(setf (aref costs (y c) (x c))
cost)
(loop for (dy . dx) in +dy-dx+
for ny = (+ (y c) dy)
for nx = (+ (x c) dx)
for nc = (make-coord :y ny :x nx)
when (and nc
(not (find (obj-at nc)
"#E")))
do (let ((penalty 0))
(loop for (dy . dx) in +dy-dx+ unless (= dy dx 0) do
;; ncは即値
(let ((c nc))
(while c
(cond
((char= (obj-at c) #\W)
(return))
((char= (obj-at c) #\E)
;; 一番近くの探知機で止まる
(let ((cycle (gethash c finder-cycle-by-coord)))
(assert cycle)
;; TODO いい感じの係数をかける
(incf penalty (float (/ cycle)))
(return)))
(t
(setf c (next-coord c dy dx)))))))
(let ((new-cost (+ cost penalty)))
(when (< new-cost (aref costs (y nc) (x nc)))
(setf (aref costs (y nc) (x nc))
new-cost)
(rh:push! heap (list new-cost nc)))))))))
;; (break)
costs)))
(defun read-game-info ()
(destructuring-bind (n d h) (mapcar #'parse-fixnum (split (read-line)))
(declare (ignore n h))
(let ((objs (make-array '(#.+grid-size+ #.+grid-size+) :element-type '(unsigned-byte 4))))
(dotimes (y +grid-size+)
(let ((s (read-line)))
(dotimes (x +grid-size+)
(setf (aref objs y x)
(char->int (char s x))))))
(let ((m (read))
(finder-cycle-by-coord (make-hash-table)))
(dotimes (_ m)
(destructuring-bind (y x dd) (mapcar #'parse-fixnum (split (read-line)))
(setf (gethash (make-coord :y y :x x) finder-cycle-by-coord)
dd)))
(make-game-info :estimated-cost-to-goal (%make-est-cost-from-obj objs #\G finder-cycle-by-coord)
:estimated-cost-to-key (%make-est-cost-from-obj objs #\K finder-cycle-by-coord)
:key-pos (%find-obj #f(int->char (aref objs (y %) (x %))) #\K)
:objs objs
:finder-cycle-by-coord finder-cycle-by-coord
:finder-penalty d)))))
(defun %find-nearest-finders (game-info block-exist-p finder-destroyed-p pos &optional (directions +dy-dx+))
(let ((res nil))
(loop for (dy . dx) in directions do
(let ((c pos))
(while c
(cond
((char= (obj-at game-info c)
#\W)
(return))
((funcall block-exist-p c)
(return))
((and (char= (obj-at game-info c) #\E)
(not (funcall finder-destroyed-p c)))
;; 一番近くの探知機で止まる
(push c res)
(return))
(t
(setf c (next-coord c dy dx)))))))
(nreverse res)))
;; TODO 他のアクションと共通の部分は切り出すとよさそう？→バグらせそうなのでやめたほうがいい
;; TODO 体力消費、ターン消費？(アイテム取得は移動時だけ)
(defun do-nothing (state game-info)
(with-accessors ((pos %pos)
(visited %visited)
(has-key %has-key)
(dfs %destroyed-finders)
(bs %blocks)
(fa %fire-amount)
(ja %jewel-amount)
(ev %elapsed-vital)
(et %elapsed-turn)) state
(let* ((nearest-finders (%find-nearest-finders
game-info
;; block-exist-p
(lambda (c)
(avl:ref bs c))
;; finder-destroyed-p
(lambda (c)
(avl:ref dfs c))
pos))
(nev (+ ev
(* (length (remove-if-not #f(finder-active-p game-info % (1+ et))
nearest-finders))
(%finder-penalty game-info))
1)))
;; #>(pos new-pos)
(make-state :pos pos
:has-key has-key
:visited visited
:destroyed-finders dfs
:blocks bs
:fire-amount fa
:jewel-amount ja
:elapsed-vital nev
:elapsed-turn (1+ et)))))
(defun move (state game-info move)
(with-accessors ((pos %pos)
(visited %visited)
(has-key %has-key)
(dfs %destroyed-finders)
(bs %blocks)
(fa %fire-amount)
(ja %jewel-amount)
(ev %elapsed-vital)
(et %elapsed-turn)) state
(destructuring-bind (dy . dx) (move->dy-dx move)
(let* ((ny (+ (y pos) dy))
(nx (+ (x pos) dx))
(new-pos (make-coord :y ny
:x nx))
(nobj (obj-at game-info new-pos))
(new-visited (%get-next-visited state pos))
(nfa (if (char= nobj #\F)
(1+ fa)
fa))
(nja (if (and (char= nobj #\J)
(not (visitedp state pos)))
(1+ ja)
ja))
(nearest-finders (%find-nearest-finders
game-info
;; block-exist-p
(lambda (c)
(avl:ref bs c))
;; finder-destroyed-p
(lambda (c)
(avl:ref dfs c))
new-pos))
(nev (+ ev
(* (length (remove-if-not #f(finder-active-p game-info % (1+ et))
nearest-finders))
(%finder-penalty game-info))
1)))
(declare (ignore _))
;; #>(pos new-pos)
(make-state :pos new-pos
:has-key (or has-key (char= (obj-at game-info new-pos)
#\K))
:visited new-visited
:destroyed-finders dfs
:blocks bs
:fire-amount nfa
:jewel-amount nja
:elapsed-vital nev
:elapsed-turn (1+ et))))))
(defun place-block (state game-info place-pos)
(with-accessors ((pos %pos)
(visited %visited)
(hk %has-key)
(dfs %destroyed-finders)
(bs %blocks)
(fa %fire-amount)
(ja %jewel-amount)
(ev %elapsed-vital)
(et %elapsed-turn)) state
(let* (;; 空のマスでないといけない
(_ (assert (char= (obj-at game-info place-pos) #\.)))
(_ (assert (eql (avl:ref bs place-pos) nil)))
(nbs (avl:insert bs place-pos t))
(nearest-finders (%find-nearest-finders
game-info
;; block-exist-p
(lambda (c)
(avl:ref nbs c))
;; finder-destroyed-p
(lambda (c)
(avl:ref dfs c))
pos))
(nev (+ ev
(* (length nearest-finders)
(%finder-penalty game-info))
1)))
(declare (ignore _))
(make-state :pos pos
:visited visited
:has-key hk
:destroyed-finders dfs
:blocks nbs
:fire-amount fa
:jewel-amount ja
:elapsed-vital nev
:elapsed-turn (1+ et)))))
(defun destroy-block (state game-info place-pos)
(with-accessors ((pos %pos)
(visited %visited)
(has-key %has-key)
(dfs %destroyed-finders)
(bs %blocks)
(fa %fire-amount)
(ja %jewel-amount)
(ev %elapsed-vital)
(et %elapsed-turn)) state
(let* (;; 空のマスのはず
(_ (assert (char= (obj-at game-info place-pos) #\.)))
;; いま置いているはず
(_ (assert (avl:ref bs place-pos)))
(nbs (avl:remove bs place-pos))
(nearest-finders (%find-nearest-finders
game-info
;; block-exist-p
(lambda (c)
(avl:ref nbs c))
;; finder-destroyed-p
(lambda (c)
(avl:ref dfs c))
pos))
(nev (+ ev
(* (length (remove-if-not #f(finder-active-p game-info % (1+ et))
nearest-finders))
(%finder-penalty game-info))
1)))
(declare (ignore _))
(make-state :pos pos
:visited visited
:has-key has-key
:destroyed-finders dfs
:blocks nbs
:fire-amount fa
:jewel-amount ja
:elapsed-vital nev
:elapsed-turn (1+ et)))))
(defun destroy-finders-by-fire (state game-info dir)
(with-accessors ((pos %pos)
(has-key %has-key)
(visited %visited)
(dfs %destroyed-finders)
(bs %blocks)
(fa %fire-amount)
(ja %jewel-amount)
(ev %elapsed-vital)
(et %elapsed-turn)) state
(let* ((destroyed-finders (%find-nearest-finders
game-info
;; block-exist-p
(lambda (c)
(avl:ref bs c))
;; finder-destroyed-p
(lambda (c)
(avl:ref dfs c))
pos
(list (move->dy-dx dir))))
(ndfs (reduce (lambda (dfs c)
(avl:insert dfs c t))
destroyed-finders
:initial-value dfs))
(nearest-finders (%find-nearest-finders
game-info
;; block-exist-p
(lambda (c)
(avl:ref bs c))
;; finder-destroyed-p
(lambda (c)
(avl:ref ndfs c))
pos))
(nfa (1- fa))
(nev (+ ev
(* (length (remove-if-not #f(finder-active-p game-info % (1+ et))
nearest-finders))
(%finder-penalty game-info))
1)))
(assert (>= nfa 0))
(make-state :pos pos
:visited visited
:destroyed-finders ndfs
:has-key has-key
:blocks bs
:fire-amount nfa
:jewel-amount ja
:elapsed-vital nev
:elapsed-turn (1+ et)))))
(defun make-init-state (game-info)
(let* ((sp (%find-obj #f(obj-at game-info %) #\S))
(visited (ash 1 (+ (* (y sp)
+grid-size+)
(x sp)))))
(make-state :pos sp
:has-key nil
:visited visited
:destroyed-finders nil
:blocks nil)))
(defun goal-state-p (state game-info)
(and (%has-key state)
(char= (obj-at game-info (%pos state))
#\G)))
(defun validate-state (state game-info)
;; TODO
;; 到達可能な場所にいる
;; visitedに現在の場所が入っている
;; 破壊された探索機の場所
;; ブロックを空マス以外に置いていない
;; jewel-amountがvisitedで探索済みの点と一致
;; elapsed-turn <= elapsed-vital
nil)
(defconstant +dist-penalty-factor+ -1.0)
(defconstant +est-cost-factor+ 10d0)
(defun %eval-penalty-for-dist-to-goal (state game-info)
(let* ((rest-vital (- +player-vital+ (%elapsed-vital state)))
(est-cost (estimated-cost-to-goal game-info (%pos state))))
;; 不足が大きいほど強いペナルティ
(max (round (* (float (max 0.0 (- (* est-cost +est-cost-factor+)
rest-vital))
0d0)
+dist-penalty-factor+))
most-negative-fixnum)))
(defun %eval-for-dist-to-key (state game-info)
(let* ((est-cost-from-here-to-key (estimated-cost-to-key game-info (%pos state)))
(est-cost-from-key-to-goal (estimated-cost-to-goal game-info (%key-pos game-info)))
(est-cost (+ est-cost-from-here-to-key
est-cost-from-key-to-goal)))
;; 最短で取りに行きたい
(+ (- (round est-cost))
-100000)))
(defun eval-state (state game-info)
;; TODO 辿りつけなさそうだとペナルティ
;; TODO 最後が近づくほど傾斜を強くする
;; TODO keyを所持しているかどうかも考慮する(スコアリングでやってしまうほうが楽かも)
(if (%has-key state)
(+ (%jewel-amount state)
(%eval-penalty-for-dist-to-goal state game-info))
(%eval-for-dist-to-key state game-info)))
(defstruct (node (:conc-name %))
;; TODO hash
(parent nil :type (or null node))
(state nil :type state)
(score nil :type fixnum)
(last-action nil :type (or null cons)))
(defconstant +time-limit+ 2.5)
(defconstant +heap-size-threshold+ 100)
(declaim (notinline main))
(defun main ()
(let* ((game-info (read-game-info))
(init-state (make-init-state game-info))
(states (make-array (1+ +player-vital+)))
(start (get-internal-real-time))
(goal-candidates (rh:make-randomized-heap #'> #'%score)))
(dotimes (elapsed (1+ +player-vital+))
(setf (aref states elapsed)
(rh:make-randomized-heap #'> #'%score)))
(rh:push! (aref states 0)
(make-node :state init-state
:score (eval-state init-state game-info)))
;; 時間いっぱいchokudaiサーチ
(loop named search for turn from 1 do
(dotimes (elapsed-vital +player-vital+)
;; #>elapsed-vital
(when (> (/ (float (- (get-internal-real-time)
start))
internal-time-units-per-second)
+time-limit+)
#>turn
(return-from search))
(unless (rh:empty-p #1=(aref states elapsed-vital))
(let ((node (rh:pop! #1#)))
(labels ((%treat-next (next-state action)
(let* ((next-node (make-node :parent node
:state next-state
:score (eval-state next-state game-info)
:last-action action))
(nev (%elapsed-vital next-state)))
;; #>(elapsed-vital nev)
(when (<= nev +player-vital+)
(cond
((goal-state-p next-state game-info)
(rh:push! goal-candidates next-node))
(t
(rh:push! (aref states nev)
next-node)
(when (= (rh:count (aref states nev))
+heap-size-threshold+)
(rh:prune! (aref states nev)
(ash +heap-size-threshold+ -1)))))))))
(%treat-next (do-nothing (%state node) game-info)
(cons :wait nil))
(loop for (dir . (dy . dx)) in +move-dy-dx-assoc+ do
(let ((nc (next-coord (%pos (%state node)) dy dx)))
(when nc
;; 移動(「何もしない」も含む)
(when (reachablep (%state node) game-info nc)
(%treat-next (move (%state node)
game-info
dir)
(cons :move dir)))
;; ブロックを配置
#+nil
(when (block-placeable-p (%state node) game-info nc)
(%treat-next (place-block (%state node)
game-info
nc)
(cons :place-block dir)))
;; ブロックを破壊
#+nil
(when (block-removable-p (%state node) game-info nc)
(%treat-next (destroy-block (%state node)
game-info
nc)
(cons :destroy-block dir)))
;; ファイヤー
#+nil
(when (plusp (%fire-amount (%state node)))
(%treat-next (destroy-finders-by-fire (%state node) game-info dir)
(cons :fire dir)))))))))))
;; moveを復元して出力
(let ((best-node (unless (rh:empty-p goal-candidates)
(rh:pop! goal-candidates)))
(res nil))
(assert best-node)
#>((%score best-node))
(while (%parent best-node)
(push (%last-action best-node)
res)
(setf best-node (%parent best-node)))
(loop for (act . dir) in res
do (println
(ecase act
(:wait "S")
(:move
(format nil
"M ~a"
(dir->char dir)))
((:place-block :destroy-block)
(format nil "B ~a" (dir->char dir)))
(:fire
(format nil "F ~a" (dir->char dir)))))))))
#-swank (main)
;;;
;;; Debug
;;;
#+swank
(defun run ()
(let ((*standard-input*
(make-string-input-stream
(with-output-to-string (*standard-output*)
(run-program
(truename "~/.roswell/bin/copy-or-paste")
'()
:output *standard-output*)))))
(main)))
;; Raise error on warning at compile time
#+(and sbcl (not swank))
(eval-when (:compile-toplevel)
(when (or (plusp sb-c::*compiler-warning-count*)
sb-c::*undefined-warnings*)
(error "compiler-error-count:~a, undefined warnings:~a"
sb-c::*compiler-warning-count*
sb-c::*undefined-warnings*)))
#+swank
(defun run-sample (infile outfile &optional (out *standard-output*))
(with-open-file (*standard-input* infile :direction :input)
(with-open-file (*standard-output* outfile :direction :output
:if-exists :supersede)
(main))
(sb-ext:run-program "/usr/bin/java" (list "Judge" infile outfile)
:output out
:error *error-output*)))
#+swank (declaim (notinline run-sample-zero))
#+swank
(defun run-sample-zero ()
(gc :full t)
(with-input-from-string (*standard-input* "60 3 1500
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J.E....J.E.J...E.#..E........##..E....#J..#.#..J...#...E#E..
374
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")
(main)))